A. Create a CloudWatch Logs metric filter on the log group. Use a filter pattern that matches the username. Publish a CloudWatch metric that sums the number of logins over the past 7 days.
B. Create a CloudWatch Logs subscription on the log group. Use a filter pattern that matches the username. Publish a CloudWatch metric that sums the number of logins over the past 7 days.
C. Create a CloudWatch Logs Insights query that uses an aggregation function to count the number of logins for the username over the past 7 days. Run the query against the log group.
D. Create a CloudWatch dashboard. Add a number widget that has a filter pattern that counts the number of logins for the username over the past 7 days directly from the log group.